MOSCOW — Former spy Anna Chapman has publicly reaffirmed her allegiance to Russia and Prime Minister Vladimir Putin by joining the youth wing of his United Russia party.

Chapman was exposed in the United States along with nine other so-called sleeper agents in an FBI sting operation and deported back to Russia this summer.

Rather than recede into anonymity like the other agents, Chapman has reveled in the fame. Since Prime Minister Putin held a reception to welcome her and the other agents back, Chapman has appeared at a Russian rocket launch and stripped to her underwear for a men’s magazine, among other things.

One of the reasons the Young Guard youth wing was formed was to counter uprisings that would displace Putin and President Dmitry Medvedev.